The Future on Earth isn't a fun place to be after the Great Destruction of 2041. The sky glows sickly with toxins, and everyone wears thick boots against the radioactive ooze always coming out of the ground. The government still functions, but with vastly fewer citizens. Past Examination Technology (PET) is a small but important project looking for answers to heal both the Past, and their current Future. Timber is the newest Mr. M (for Muscle), as team security. He joins an educated young woman, Ms. E, and an argumentative man in his 40s who is a gifted psychic, Mr. P, to Time Travel back to the Past, pre-Destruction, and try to piece together what happened.